We've had our large garden cabin for 3 months now after a friend recommended the company. Great experience: we are using it a lot more than we thought, mostly as a second lounge (one for adults, one for the children!). The insulation is really effective - we just got the floor and roof insulation on the advice of the advisor at Dunster, and once it heats up (we have a 2kW oil heater, takes about 25 mins) it holds its warmth really well. Am thinking it will be like a greenhouse in the summer! Great experience with customer services at Dunster, they answered the phone quickly whenever I called (quite a few times in the runup to delivery!) and were even able to answer construction queries over the phone on the days of the big build (usually things along the lines of "we're not sure where this bit of wood goes"). We booked our own chippies locally to build it (the Dunster pros would undoubtedly have done the job quicker, but the charges for the Dunster pro construction team seemed too high), they found the instructions very scant but managed to do a good job anyway. Overall, very happy to recommend.